Re: [manet] Question about draft-ietf-manet-dlep-traffic-classification-05

Lou Berger <lberger@labn.net> Tue, 27 July 2021 22:41 UTC

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To: "Rogge, Henning" <henning.rogge@fkie.fraunhofer.de>, "manet@ietf.org" <manet@ietf.org>
References: <1625729404690.75041@fkie.fraunhofer.de> <ea86cd7a-98e9-d5f9-a87a-29b418f479cd@labn.net> <1627020511610.94640@fkie.fraunhofer.de>
From: Lou Berger <lberger@labn.net>
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Date: Tue, 27 Jul 2021 18:35:00 -0400
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Archived-At: <https://mailarchive.ietf.org/arch/msg/manet/y7QFRV0g3nGJ7sguXK_U-vfTfZo>
Subject: Re: [manet] Question about draft-ietf-manet-dlep-traffic-classification-05
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Thank you for the comment. See below

On 7/23/2021 2:08 AM, Rogge, Henning wrote:
> Not necessarily replace TID with LID... just make TID an attribute of a "destination" and mandate a LID to differentiate between different destinations with the same MAC. Most likely it wouldn't even require an implementation change in your code on the receiver side, just adding the link-ids on the transmitter side (you could of course add a check that nobody gives you two different TIDs with the same LID later).
>
> Yes, it might be necessary (and a good idea in my opinion) to relaxe the LID RFC a bit (or post an update to it) that you don't need to use the MAC of the radio (rather you SHOULD use it if your radio is a router and no bridge) and that you don't need to add IP addresses (again, unless its a router).

given the time that has elapsed on these documents, hitting reset on 
them and waiting for a bis of an existing RFC just seems like a 
non-starter to me from a process perspective.  I of course will defer to 
the WG...

>
> Adding more "primary/unique keys" with more DLEP documents will be a very painful change to most DLEP implementations... having a generic set of primary keys (mac+linkid) would keep this complexity in check.

I think you have a valid perspective but respectfully one I don't share.

Lou

>
> Henning
>
> ________________________________________
> Von: Lou Berger <lberger@labn.net>
> Gesendet: Donnerstag, 22. Juli 2021 21:23
> An: Rogge, Henning; manet@ietf.org
> Cc: Velt, R. (Ronald) in 't
> Betreff: Re: [manet] Question about draft-ietf-manet-dlep-traffic-classification-05
>
> I've been grappling with this and I think you are basically saying
> replace the the TID with the LID.  At one level this sounds like a good
> idea, but in looking at how to change the TC draft to effect this change
> it seems to be that we'd need to change the base specification (RFC8703)
> to allow for operation with normal endpoints (without Layer 3 DLEP
> Destinations or Gateway Nodes).
>
> Given that use of LID requires a spec and implementation change, I'm not
> sure of the value in moving from TID to LID.
>
> Lou
>
>
>> Henning Rogge
>> _______________________________________________
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